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AssigneesNational University Corporation Tokyo University of Agriculture and Technology, Takasago International Corporation
InventorsKen TANAKA, Tohru Yokozawa, Tomohiko Hakamata
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[Problem to be Solved] To provide an axially asymmetric optically active biarylphosphorus compound that can easily produced without the step of optical resolution which was almost indispensable in conventional methods. [Means for Solving the Problems] A method for producing an axially asymmetric phosphorus compound represented by the general formula (1), comprising a cycloaddition reaction of a compound having a triple bond with the use of a catalyst containing rhodium metal and an optically active bisphosphine. (In the formula (1), R1 and R2 may be the same or different and independently are an alkyl group optionally having a substituent group, a cycloalkyl group optionally having a substituent group, an aryl group optionally having a substituent group, an alkoxy group optionally having a substituent group or an aryloxy group optionally having a substituent group; * is axial asymmetry.)
A method for producing an optically active compound represented by the following general formula (1) which comprises an intramolecular cycloaddition reaction of a compound represented by the following general formula (2) with the use of a catalyst containing rhodium metal and an optically active bisphosphine:
A compound represented by the following general formula (2):
Dependencies are inferred from the claim text.